320234220536642 has 32 divisors (see below), whose sum is σ = 501361621488000. Its totient is φ = 153117168259968.

The previous prime is 320234220536519. The next prime is 320234220536707. The reversal of 320234220536642 is 246635022432023.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 320234220536593 and 320234220536602.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7820297984 + ... + 7820338932.

It is an arithmetic number, because the mean of its divisors is an integer number (15667550671500).

Almost surely, 2^{320234220536642} is an apocalyptic number.

320234220536642 is a deficient number, since it is larger than the sum of its proper divisors (181127400951358).

320234220536642 is a wasteful number, since it uses less digits than its factorization.

320234220536642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79370.

The product of its (nonzero) digits is 2488320, while the sum is 44.

Adding to 320234220536642 its reverse (246635022432023), we get a palindrome (566869242968665).

The spelling of 320234220536642 in words is "three hundred twenty trillion, two hundred thirty-four billion, two hundred twenty million, five hundred thirty-six thousand, six hundred forty-two".